Pt single atoms dispersed in a hybrid MOFox-in-nanotube structure for efficient and long-term stable photocatalytic H2 generation

Qin S, Guo J, Chen X, Cao R, Denisov N, Song YY, Schmuki P (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of Materials Chemistry A Royal Society of Chemistry

Book Volume: 11

Pages Range: 17759-17768

Journal Issue: 33

DOI: 10.1039/d3ta00996c

Abstract

Atomically dispersed Pt single atoms (SAs) have been reported to be a highly effective co-catalyst on TiO2 for photocatalytic H2 generation. Many TiO2 supports have been explored for hosting Pt SAs. Particularly 1D titania hosts allow for an optimized light and charge carrier management. But, attached Pt SAs often suffer from agglomeration during the photocatalytic process. In this context, titania-based metal-organic frameworks (MOFs), such as MIL-125, have attracted wide attention, as they provide stable anchoring sites for Pt SAs. To combine the beneficial features of the 1D TiO2 morphology with the SA stability, we introduce here a hierarchical structure, where the Pt SAs are dispersed in MOF-derived porous oxide features that are embedded in aligned anodic TiO2 nanotubes. This hybrid structure is intrinsically (within the nanotubes) synthesized and combines the excellent light harvesting and carrier transport properties of titania nanotubes with the beneficial features of MOF. As a result of this synergy, we obtain not only a high photocatalytic H2 evolution efficiency but most importantly a remarkably long-term stability of H2 evolution under UV light (365 nm) or simulated solar light (AM 1.5).

Authors with CRIS profile

Shanshan Qin Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO) Xuewen Chen Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO) Nikita Denisov Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO) Patrik Schmuki Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO)

Additional Organisation(s)

Nanoanalysis and Electron Microscopy (CENEM) Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

Donghua University / 东华大学 CN China (CN)

How to cite

APA:

Qin, S., Guo, J., Chen, X., Cao, R., Denisov, N., Song, Y.Y., & Schmuki, P. (2023). Pt single atoms dispersed in a hybrid MOFox-in-nanotube structure for efficient and long-term stable photocatalytic H2 generation. Journal of Materials Chemistry A, 11(33), 17759-17768. https://doi.org/10.1039/d3ta00996c

MLA:

Qin, Shanshan, et al. "Pt single atoms dispersed in a hybrid MOFox-in-nanotube structure for efficient and long-term stable photocatalytic H2 generation." Journal of Materials Chemistry A 11.33 (2023): 17759-17768.

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